document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=411687>Question 411687</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. Identify the vertex of each parabolas, and idenitify if it is a maximum or minimum.\r<BR>\n" );
document.write( "\n" );
document.write( "a. f(x)= x^2 - 2x + 6<BR>\n" );
document.write( "b. f(x) = 4(x-3)^2-1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #289325 by </B><A HREF=/tutors/aboutme.mpl?userid=rfer><B>rfer(16322)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rfer><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=289325\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) minimum<BR>\n" );
document.write( "vertex = (1,5)\r<BR>\n" );
document.write( "\n" );
document.write( "b) minimum<BR>\n" );
document.write( "Vertex = (3,0)\r<BR>\n" );
document.write( "\n" );
document.write( "If the x^2 part is positive, it opens up, so the vertex is at the minimum.<BR>\n" );
document.write( "If the -x^2 part is negative, it opens down, so the vertex is at the maximum.<BR>\n" );
document.write( "These are both positive, so they open up. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );